Your code mutates the input. The kata description says you shouldn't.

l=a.split('')

ValueError: empty separator

Also, I have no idea what you second if statement is about.

Your whole approach seems to be prone to errors, I'd actually recommend coming back to this one after solving more katas first. Also, when you post code, use proper code formatting, and read this troubleshooting FAQ first.

Literally the first example...

solve("code*s","codewars") = true, because we can replace the asterix(*) with "war" to match the second string.

Your code would return False. Your code just removes the asterisk, but it can be replaced with any other string to match the strings, if possible.

"You will be given two strings a and b consisting of lower case letters, but a will have at most one asterix character. The asterix (if any) can be replaced with an arbitrary sequence (possibly empty) of lowercase letters. No other character of string a can be replaced. If it is possible to replace the asterix in a to obtain string b, then string b matches the pattern."
For me ut is simple as that.
Can you give me any example when my sollution is wrong ?

Your solution isn't complete. For example, try adding this test case:

Test.assert_equals(solve("code*code","codewars"), False)

Your solution would return True, when it's clearly wrong.

Your solution is incorrect, the task isn't so simple. Read the description again, especially the first example. Also, add spoiler flag next time plz.

Because 2 is a prime

why isnt 12 in the array ? is not a prime..

0 will return true this is a issue here ;)

yes it is
https://primes.utm.edu/lists/small/10000.txt

My bad sorry;

Is 19 a prime?